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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* William Mitsuda (wmitsuda@gmail.com) - Bug 153879 [Wizards] configurable size of cvs commit comment history
*******************************************************************************/
package org.eclipse.team.internal.ccvs.ui.repo;
import java.util.Vector;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
class CommentHistoryContentHandler extends DefaultHandler {
private StringBuffer buffer;
private Vector comments;
public CommentHistoryContentHandler() {
}
@Override
public void characters(char[] chars, int startIndex, int length) throws SAXException {
if (buffer == null) return;
buffer.append(chars, startIndex, length);
}
@Override
public void startElement(
String namespaceURI,
String localName,
String qName,
Attributes atts)
throws SAXException {
String elementName = getElementName(namespaceURI, localName, qName);
if (elementName.equals(RepositoryManager.ELEMENT_COMMIT_COMMENT)) {
buffer = new StringBuffer();
return;
}
if (elementName.equals(RepositoryManager.ELEMENT_COMMIT_HISTORY)) {
comments = new Vector(RepositoryManager.DEFAULT_MAX_COMMENTS);
return;
}
}
@Override
public void endElement(String namespaceURI, String localName, String qName) {
String elementName = getElementName(namespaceURI, localName, qName);
if (elementName.equals(RepositoryManager.ELEMENT_COMMIT_COMMENT)) {
comments.add(buffer.toString());
buffer = null;
return;
}
if (elementName.equals(RepositoryManager.ELEMENT_COMMIT_HISTORY)) {
RepositoryManager.previousComments = new String[comments.size()];
comments.copyInto(RepositoryManager.previousComments);
return;
}
}
/*
* Couldn't figure out from the SAX API exactly when localName vs. qName is used.
* However, the XML for project sets doesn't use namespaces so either of the two names
* is fine. Therefore, use whichever one is provided.
*/
private String getElementName(String namespaceURI, String localName, String qName) {
if (localName != null && localName.length() > 0) {
return localName;
} else {
return qName;
}
}
}
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